Coexpression of CBS with p65 in gastric projection DRG neurons. A, Stomach T9 DRG cells were labeled with DiI (red) injected into the stomach wall. B, CBS-positive cells are shown in green. C, p65-positive cells are shown in blue. D, Merge of double labeling of DiI and CBS. E, Merge of p65-positive staining and DiI labeling. F, Merge of p65-positive staining and CBS labeling. Scale bar, 50 μm.